Adjusting means



Patented Aug. 3l, 1.92'6

UNITED STATES HOWARD B. HCKENZIE, 0F TORONTO, ONTABIO, CANADA.

' ADTUBTDG m8.

Application med August 80, 1924, Serielle. 735,155, and in Canada Ichi-nary 80. 1m.

or mechanical, whereby these elements may be either successively or simultaneously vared in magnitude position or condition expe- Iditiously and if desired by small increments.

I accomplish these and other very desirable features which will hereinafter be pointed out and fully described by the novel mechanism and disposition of parts illustrated in the drawings and described in the accompanying specification.

As my invention possibly finds one of its chief applications in conjunction with radio circuits, I' have chosen to illustrate such an embodiment in the drawings which accompany and form a part of this specification, and in which like reference numerals designate corresponding parts throughout:

Fig. 1 is a plan view of one such embodiment of my invention.

Fig.V 2 is a broken elevation of the same.

Fig. 3 is a circuit diagram illustrating the I cofunctionality of the control elementsl which vare adaptedto be adjusted by my invention.l Fig. 4 is a plan view of an alternative einbodiment of my invention.

Fig. 5 is a broken elevation of the same.

Fig. 6 iu a circuit diagram illustratingl the cofunctionality of the elements adjustable by my invention.

Referring now especially to 1 to 3 in which I have illustrated my invention as applied to the successive adjustment of the electrical elements of a single circuit regenen tive radio receiving system, my device comprises a shaft or adjusting member 2, rne extremity of which is mounted to have un versa] movement, and for this purpose may be provided withv a ball 5` whic is mounted between members 4 and 6. The other extremity of the shaft passes through a slot provided therefor in a su porting panel 18, and is provided with a Enurled knob 20. A coiled 'steel spring 3 is sleeved over the shaft 2, and is rigidly secured at. one extremity to the support 6. The spring thus serves to support the shaft 2 `normally with its 'axis at riglitangles tothe plane of the supporting member 6. Obviously, many other methods of so supporting the `shaft may be used, and the coiled spring yis merely shown as one method of accomplishing the desired result. W'. A collar of rubber or other suitable material is likewise supported by uprights v16 and 17 and the shaft 13 of which is journalled in a bearing 24. f i

It will be noted from Fig.- 2 that the discs 9 and 10 are graduated on their surfaces ad# jacent to thepanel'lS, and near the outerl periphery `thereof, 'andf that these uations may thus'foe'observed throng apertures 22 ,and 21 respectively, providedv for the purpose in the panel 18. There is' furi ther provided in these apertures as shown diametrically disposed index lines 52 and 58,

to aid in setting the control members of elements.A Y

It will be noted that as the shaft is moved i' toward the right or left as viewedli F' 2, that either the condenser 8 may 'be a justed or the variocoupler 11 may be ad- )usted to themagnitude or position desired. As will be noted in Fig.v3, condenser 8 is'in series with the antenna inductance, and variocoupler 11 determines the amount of feed back or .regeneration in this simple circuit regenerative'. radio receiver, the ph't sirznerobvious that w ated 70 nfl 'be .my gev Le, as aupao. to the notament; of eectreal fzoiatr'os with es are used in the radio mrtt tha. my dence is appcebl no the oo. tro of mm'hanea eiement-ls, nf is eapabe of useful applcattvn 75 s no. f manyfrts, as for instance, it ma be used '1,

ozu 3Q nos 'Le control zx pluray of bleed m ves auch :TH-Luc' as are used in eminem-lon wml turbines.

" be Uz'e- Again it may be 'lsed. to wiiut the position of moving zmmber'ix; meehmiea' motions, 30 of the extent of aperture of orees and wh' T* v Sei?. 'to udjqst ssn y' tif;

X; o mi, or if de im a ruck to 90 "near motion.

.a,pp1e..- Hef in the L 5 mm 'oted aud uff mi expedes echa' al meu L Wl'lereby said J M 'afbo ity of um control eieaclluizg sfz 120 enxe is, s bengmounted extremjv ereok to have universal :geenw motn-)1A and nommfy dissociated meohanca n" '1y jyfgheed. eoutl'o elex'nenta, means whereby ,said trljv 1^ 'nv' ednto oper 225 e x, d control ele* uns whereby said i @y moved into operative U5 reletxon Wt.. gpplm'ahtfy of sind demente.

'n im aiij'usitng means, u, pluruty of 15" mechanically ydissociated variable 'control .o erative relation with any of said control elements, a driving means for adjusting said e ements selectively and means whereby said elements, said driving means being mounted driving means may be moved into operative 10 at one extremity thereof to `have universal relation with a pluralityof said elements to 5 motion and normailydissociated mechanica1- permit simultaneous 'adjustment thereof.

1y witlnsaid .control elements, means wherev by said driving meansmay be moved into HOWARD B. MCKENZIE. 

